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1 perry 1 sgitopnm
2 !!!sgitopnm
3 NAME
4 SYNOPSIS
5 DESCRIPTION
6 OPTIONS
7 REFERENCES
8 SEE ALSO
9 AUTHOR
10 ----
11 !!NAME
12
13
14 sgitopnm - convert a SGI image file to a portable anymap
15 !!SYNOPSIS
16
17
18 __sgitopnm__ [[__-verbose__] [[__-channel__ ''c'']
19 [[''SGIfile'']
20 !!DESCRIPTION
21
22
23 Reads an SGI image file as input. Produces a PGM image for a
24 2-dimensional (1 channel) input file, and a PPM image for a
25 3-dimensional (3 or more channels) input file.
26
27
28 Alternatively, produces a PGM image of any one of the
29 channels in the input file.
30 !!OPTIONS
31
32
33 __-verbose__
34
35
36 Give some information about the SGI image file.
37
38
39 __-channel__ ''c''
40
41
42 Extract channel ''c'' of the image as a PGM image.
43 Without this option, __sgitopnm__ extracts the first 3
44 channels as a PPM image or, if the input has only 1 channel,
45 extracts that as a PGM image, and if the input has 2
46 channels, fails.
47 !!REFERENCES
48
49
50 SGI Image File Format documentation (draft v0.95) by Paul
51 Haeberli (paul@sgi.com). Available via ftp at
52 sgi.com:graphics/SGIIMAGESPEC.
53 !!SEE ALSO
54
55
56 pnm(5), pnmtosgi(1)
57 !!AUTHOR
58
59
60 Copyright (C) 1994 by Ingo Wilken
61 (Ingo.Wilken@informatik.uni-oldenburg.de)
62 ----
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